The Volvo Penta Pencil Anode Magnesium Ø15 mm with Brass Plug BSPT 1/2″ is supplied as a complete assembly , consisting of a magnesium pencil anode and a brass threaded plug. This unit is designed to provide maximum protection against galvanic corrosion in freshwater environments , where magnesium is the most effective anode material.
Magnesium anodes offer the highest electrochemical activity, making them ideal for use in lakes, rivers, and other low-conductivity water conditions. The integrated 1/2″ BSPT (gas conico) brass plug ensures secure installation and reliable electrical contact. This type of pencil anode is commonly used in marine cooling systems and other internal applications requiring effective corrosion protection.
Material
Anode: Magnesium
Plug: Brass
Thread
1/2″ BSPT (Gas Conico)
Dimensions
Diameter (Ø): 15.0 mm
Length (L): 30.0 mm
Dimension (C): 13.0 mm
Reference / Replacement Numbers
3838499
800476
804107
838929
858501
Key Features
Complete magnesium pencil anode supplied with brass plug
Maximum corrosion protection in freshwater
Sacrificial anode for internal engine protection
Secure 1/2″ BSPT threaded installation
Precision-manufactured for correct fitment
Regular inspection and timely replacement of magnesium pencil anodes is essential to maintain effective corrosion protection and prevent damage to internal marine engine components.
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